Abstract
Learning to rank is an important problem in many sectors ranging from social sciences to artificial intelligence. However, it remains a rather difficult task to perform. Therefore, in some cases, it is preferable to perform cautious inference. For this purpose, we look into the possibility of an imprecise probabilistic approach for the Plackett-Luce model, a popular probabilistic model for label ranking. We aim at extending current Bayesian inference techniques for the Plackett-Luce model to an imprecise probabilistic setting so that we can deal with heterogeneous data by means of cautious mixture modelling. To achieve this, we perform a robust Bayesian analysis over a set of imprecise Dirichlet priors, which allows us to perform cautious label ranking. Finally, we use a synthetic dataset to illustrate our imprecise estimation method.
| Original language | English |
|---|---|
| Title of host publication | Building Bridges Between Soft and Statistical Methodologies for Data Science |
| Editors | Luis A. García-Escudero, Alfonso Gordaliza, Agustín Mayo, María Asunción Lubiano Gomez, Maria Angeles Gil, Przemyslaw Grzegorzewski, Olgierd Hryniewicz |
| Place of Publication | Cham, Switzerland |
| Publisher | Springer |
| Pages | 32-39 |
| Number of pages | 8 |
| ISBN (Electronic) | 9783031155093 |
| ISBN (Print) | 9783031155086 |
| DOIs | |
| Publication status | Published - 25 Aug 2022 |
| Event | 10th International Conference on Soft Methods in Probability and Statistics - Valladolid, Spain Duration: 14 Sept 2022 → 16 Sept 2022 |
Conference
| Conference | 10th International Conference on Soft Methods in Probability and Statistics |
|---|---|
| Abbreviated title | SMPS 2022 |
| Country/Territory | Spain |
| City | Valladolid |
| Period | 14/09/22 → 16/09/22 |
Keywords
- label ranking method
- imprecise probabilistic approach
- Plackett-Luce model
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